Delineation of landfill sites in Dhaka city and its
impact on environment using remote sensing
techniques

One of the major global environmental problems is human and ecological exposure to
hazardous wastes from agricultural, industrial, military, mining activities and
anthropogenic processes. These wastes often include heavy metals, hydrocarbons,
biological matters and other organic chemicals. The waste heat that increases the urban
heat. Findings reveal that landfills are situated very close to residential areas, water
bodies and agricultural lands, exposing them to various health and environmental
hazards. Improper solid waste management practices of the landfills cause adverse
environmental effects. Remote imaging method can be very useful for the detection and
remediation of hazardous wastes. Aerial photography helps to determine waste site
evaluations. Satellite systems have been successfully employed in both spectral and
morphological analysis of hazardous wastes on the landscape. Besides Satellite image
helps to emerge hyperspectral sensors have permitted determination of the specific
contaminants by processing strategies using the acquired wavelengths in the solar
reflected or thermal infrared parts of the electromagnetic spectrum. Two Dhaka,
Bangladesh, landfills are explored to understand how management practices impact
environmental quality and public health in the surrounding areas. Dhaka’s existing waste
management practices should be organized to address these concerns. Sources of these
waste reduction must be implemented to ensure the reduction of disposed waste at
landfills.